3865241638467 has 64 divisors (see below), whose sum is σ = 6392960640000. Its totient is φ = 2288386598400.

The previous prime is 3865241638373. The next prime is 3865241638469. The reversal of 3865241638467 is 7648361425683.

It is a happy number.

3865241638467 is a `hidden beast` number, since 3 + 8 + 6 + 5 + 2 + 4 + 163 + 8 + 467 = 666.

It is not a de Polignac number, because 3865241638467 - 2¹¹ = 3865241636419 is a prime.

It is a super-2 number, since 2×3865241638467² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3865241638469) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1457659 + ... + 3139307.

It is an arithmetic number, because the mean of its divisors is an integer number (99890010000).

Almost surely, 2^{3865241638467} is an apocalyptic number.

3865241638467 is a deficient number, since it is larger than the sum of its proper divisors (2527719001533).

3865241638467 is a wasteful number, since it uses less digits than its factorization.

3865241638467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681849 (or 1681843 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 63.

The spelling of 3865241638467 in words is "three trillion, eight hundred sixty-five billion, two hundred forty-one million, six hundred thirty-eight thousand, four hundred sixty-seven".